23 December 2009

A new journal is a tricky thing to get up and running, so I am pleased to plug Invertebrate Rearing. Editor Ed Baker is getting the first issue ready to go, and you can still get something in for the first issue if you submit by 10 January 2010.

This journal may have in an unfilled niche in the realm of animal care professionals. My impression is that most of the journals in this field tend to focus mammals or fish, with those working on fish usually having a strong aquaculture emphasis rather than research.

There has been plenty of reason to discuss the pet trade on this blog, mainly in the context of accidental release of unwanted pets like crayfish. It is just as important to realize, however, that there are also problems at the other end of the pet trade pipeline. For that reason, I wanted to put in a quick pointer to a new article on invertebrate collection for the pet trade. You can also find a brief summary at the Conservation Maven blog.

22 December 2009

One of my students informed me that she’d seen a crayfish in a recent issue of news stand favourite, Cosmopolitan.* This got me thinking about the kind of articles that might be accompanying the photo...

15 December 2009

I’ve updated the web page listing North American laws on crayfish to include all the Canadian provinces. It appears that Manitoba, Saskatchewan, and Ontario have laws concerning crayfish use, with Manitoba and Saskatchewan having fairly broad prohibitions.

While I’m here, I’ll note that I’ve moved the files for the main websites, Marmorkrebs.org and MarbledCrayfish.org, from a commercial server to one provided by my academic institution. This change should be unnoticeable, but there’s always the possibility that things will get confused in the transition. If you want to make sure you’re seeing the most recent files, the direct link is:

08 December 2009

Good idea: A paper in the Journal of Heredity proposes sequencing 10,000 genomes...

Bad idea: ...of vertebrates.

Okay, I’ll admit that isn’t strictly a bad idea. But it certainly leaves something to be desired, given that a news article in Science characterized this plan as, “No genome left behind.” But of course, it leaves a tremendous number of genomes behind, namely, every single invertebrate. What are the current estimates for number of vertebrate species? Maybe 60,000 or so? The crustaceans alone probably have about the same number of species. The number of vertebrate species is not even close to the number of beetle species.

The paper provides no rationale for doing such a massive scan of the vertebrate genomes alone as opposed to a project that would include the invertebrates. Indeed, the word “invertebrates” appears only once, in reference to fisheries.

In fairness, I actually do think it’s great that these researchers are working together and suggesting a big, bold scheme. I’ve made no secret that I want a crayfish genome project. With this 10K genome paper, maybe it’s time to start thinking about a larger scale invertebrate genome sequencing project that will cover the rest of the animal kingdom, even though it’s obviously not possible to do the same level of coverage as the small vertebrate sub-phylum.

05 December 2009

This is a sick crayfish. As readers may know, I am not a pathologist or parasitologist, so I have little idea what these black spots may be or how to combat them. We’ve definitely had some animals die prematurely due to whatever these are. Any information would be most welcome!